2012 Subaru Legacy Key Fob Battery Replacement Guide

Key fob allow access to your Legacy. When the key fob battery is discharged you will not to be able unlock doors remotely. Yes, it is possible to replace the battery in your remote key fob by yourself. All tools, that you need is described in this post.
What is the battery remote key fob use
Replacing battery in key fob require CR1620 battery and flat head screwdriver. Prepare these materials and tools before opening and make sure to match the type of your fob’s batteries.- flat head screwdriver
- 1xCR1620 battery
Step by step guide
A small coin battery installed inside the your keyless entry remote. Delicately try to disassemble your keyless entry remote with flat head screwdriver. Replace 1xCR1620 battery with flat head screwdriver.
Get new battery and install it in keyless entry fob's shell. Battery must be installed with the same polarity as was a previous. Your key will not work if you mistakenly put battery wrong way.
Before assembling fob’s case, make sure that all functions works by testing buttons on circuit board.
The last thing to do is put your cover back on fob. Accurately try to assemble the pieces in place by hands from top to bottom. Inspect your fob body for gaps. If it is not firmly closed try to repeat last step.
How to replace the battery video guide
DIY - Subaru Legacy Outback Key Fob Battery Replacement EASY
Still not working? Buy new one